| Author |
512Mb Sandisk Duo Pro 1024Mb capacity? |
Mad_Bob
Joined: Dec 28, 2004
Posts: > 500
From: A Bread Bin
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I managed to expand the 512 duo pro, but it wouldn't work in my brothers k750 or my P910 so I just put it back.
Shame.
Oh my god! a wooden goat!. |
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pelauvadim
Joined: Dec 22, 2005
Posts: 5
PM |
DONE! 
a k750i with an older firmware(dunno wich) recognized it!after the format amd mamaged to reformat it internally!
though it did not see mora than 468mb
after the format my w800i sees it too...
everything back to normal!
I STRONGLY ADVISE EVERYONE NOT TO TRY THIS ESPECIALLY IF YOU DON'T HAVE WARRANTY ON PHONE AND CARD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
johnsp910i
Joined: Nov 21, 2005
Posts: 5
PM |
well i have my p910i with 1gb,and w800 they both run fine so far there are about 20 cards that have been done that i know of and there are all full up to 600-800mb and ok.with a mac u can do it in a cardreader fine then delete the mac files windows has trouble doing it.
This message was posted from a P910 |
pelauvadim
Joined: Dec 22, 2005
Posts: 5
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what firmware do you have?(on w800) |
Firefreak
Joined: Jul 02, 2004
Posts: 159
From: Sweden
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I just read through the thread and its nice to see all this trial and error efforts. Seems though that the capacity is misleading. Updated first post with a warning.
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W995 Black |
butn
Joined: Dec 28, 2005
Posts: 12
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i found a txt file on my card named ProdInfo and it's got this in:
//This is a content information for the CDA file CDA102427_4_R11A
//Created by Mirza Buljusmic
//Date: 2005-07-04
MemoryStickProd=CDA 102 427_4
MemoryStickRev=R11A
MemoryStickCapacity=490741760
MemoryStickType=PRO
MemoryStickFiles=7
MemoryStickFileSize=24911547
MemoryStickDirs=15
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butn
Joined: Dec 28, 2005
Posts: 12
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490741760 Bytes = 468MB |
Chazzer3
Joined: Mar 23, 2004
Posts: > 500
From: Edinburgh, UK
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So you could, what, edit that to say 1024mb? (in bytes?)
And then try again???
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coo1k3n
Joined: May 04, 2003
Posts: 272
From: Northamptonshire, UK
PM |
So, does it or does it NOT work???
I'm getting confused with loadz of peeps saying 'IT WORKS, IT WORKS!!!' but not backing it up by saying they've managed to:
A) Transfer up to 1024MB onto the 512MB
and...
B) Access the whole of the 1024MB of data (whether it be pictures or videos).
I have a feeling everyone is just saying they've managed to format it so the card 'SAYS' it has 1024MB but this doesn't make it so, simply by reading that your card says it has this amount. We need hard evidence!
Listen to the TWiTs! Podcast 'http://www.thisweekintech.com' |
whistla
Joined: Aug 22, 2005
Posts: > 500
PM |
It will not work, this is simply a bug, i was one of the first to try this method and ut will not work. You may see that the capacity has increased but when copying files anything over the original limit will either be corrupted or will not work.
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eran.liberty
Joined: Jan 12, 2006
Posts: 1
PM |
I am not a mem card holder and have not tried this space unlocking thing... but here is my little knowledge about flash based products. It might explain your situation and it might not.
Here are two points:
- most mem cards addressable space is about twice to four times as large as their declared size.
- most mem cards do have more memory cells by a 1-10% factor of the declared size.
These two facts do not collide but require explanation.
Lets assume I want to create a 16 bytes mem card. It will require 4 bits to describe the addressable bits (0000 = 0 all the way to 1111 = 15).
If one of those bits comes unusable out of the oven I cant sell it as my card wont hold the needed space. So I add Two extra cells to a total of 18 (this is the 1-10%).
More over, I need each of the 16 original address to be alternatively routed to the extra cells. To do so I add an extra bit to the address which says if to access the original cell or the extra one.
So now we have a 5 bit address space in which 0000(0) goes to cell zero and 0000(1) is routed to the extra cell.
But you say, “Hi 5 bit address space is 32 cells! And they all addressable and usable… lets partition them”. And I say “go a head”. But remember that we do not have 32 cells we have 18 in our example… and that is because 0001(0) goes to the original one cell but 0001(1) goes to the SAME extra cell that zero is routed to on failure.
In short, my guess is the extra space that you see is these otherwise hidden address bits. And the space that you think you see is the extra 10% mem location being accessed again and again.
A simple way test it is to take a file which requires the whole space. Copy it to the card , copy it back and compare the two files, Using CRC, md5sum or any other signing tool. My guess is that all the file will be copied… all the file will be copied back.. but CRC will fail.
Check me.
Liberty
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Mad_Bob
Joined: Dec 28, 2004
Posts: > 500
From: A Bread Bin
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Um... Ok...
Nice explination.
Oh my god! a wooden goat!. |
skinticket
Joined: Feb 20, 2006
Posts: 4
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 i have an s710a and i just accidently deleted a pic i want... my firned said i can do it but only on the w800 and k750 man, i want this pic back im sooo mad i wanna cry |
djsquare
Joined: Sep 01, 2006
Posts: 47
PM |
Hi I just wanted to ask that
1)Is sandisk more reliable then
sony
2)Can i use sandisk in my sony
digicam or any other sony
product where sony pro duo is
supported
3)Im having K750i, i want to
have 2gb card in it does my
phone support it.
4)what will be the price
diffrence between sony & sandisk
for 1 & 2 gb card in Indian Rs.
Plz help me as its a big amount
to invest so dont want to loose
a fair deal
Thanks in advance |
djsquare
Joined: Sep 01, 2006
Posts: 47
PM |
Hi I just wanted to ask that
1)Is sandisk more reliable then
sony
2)Can i use sandisk in my sony
digicam or any other sony
product where sony pro duo is
supported
3)Im having K750i, i want to
have 2gb card in it does my
phone support it.
4)what will be the price
diffrence between sony & sandisk
for 1 & 2 gb card in Indian Rs.
Plz help me as its a big amount
to invest so dont want to loose
a fair deal
Thanks in advance |
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Posted: 2005-12-23 21:04
W810i
